graph. automorphism. groupNedela, Roman Half-arc-transitive graphs of arbitrarily large girth. -- 2-s2.0-85206490259. -- 10.26493/2590-9770.1575.f8d. Širáň, Jozef, 1954- In: The Art of Discrete and Applied Mathematics. -- ISSN 2590-9770. -- Vol. 7, no. 2 (2024), online, [7] s., art. no. #P2.03.